Genome-wide association studies for identification of stripe rust resistance loci in diverse wheat genotypes.

ABSTRACT:

Introduction

In North India, Puccinia striiformis f. sp. triticii (Pst), the causal agent of stripe rust, poses a significant challenge to wheat productivity. The frequent emergence of new virulent Pst strains has rendered many resistance genes ineffective. Hence, continuous identification and deployment of novel resistance genes are crucial for maintaining durable resistance and ensuring sustainable wheat cultivation.

Materials and methods

A genome-wide association study (GWAS) was conducted on 652 elite, diverse wheat genotypes using 1,938 DArTseq SNP markers. Field evaluations were performed at the adult plant stage across four locations-Hisar, Karnal, Gurdaspur, and Khudwani-under natural disease conditions. Marker-trait associations were identified

SUBMITTER: Tanwar V 

PROVIDER: S-EPMC12746750 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature